ὁπότε

Adv. of Time, correlat. to πότε, used much like ὅτε, exc. that the sense is less definite (cf. X. Cyr. 1.6.3), though the two were freq. used without distinction :

Relat., with the ind., mostly with reference to the past, when, Il. 1.399, 3.173, etc. ; the ind. ἦστε is omitted, 8.230 : in Class. Att. Prose only ὅτε is so used, when referring to a particular time, but later ὁπότε returns, as ὁπότε περιῆν when she was alive, POxy. 243.10 (i A. D.): with the pres. in a simile, ὡς δʼ ὁπότε . . ποταμὸς πεδίονδε κάτεισι Il. 11.492 : with subj., like ὁπόταν, with reference to an indef. number of occasions in the pres. or to the future, ὁππότʼ Ἀχαιοὶ Τρώων ἐκπέρσω

with opt. :

to express an event that occurred often, ὁπότε Κρήτηθεν ἵκοιτο Il. 3.233, cf. 10.189, 15.284, Od. 11.591, Th. 1.99, 2.15, Pl. Smp. 220a, X. An. 3.4.28.

after a verb of waiting, of a time future relatively to the past, ἷζε . . δέγμενος ὁππότε ναῦφιν ἀφορμηθεῖεν Il. 2.794, cf. 4.334, 7.415, 9.191, 18.524.

in orat. obliq., S. Tr. 824 (lyr.), X. An. 4.6.20 ; in implied orat. obliq., Od. 24.344 (of a past promise) ; ἀποδοτέον . . ὁ. μανεὶς ἀπαιτοῖ we were not [as you remember] to . . , Pl. R. 332a.

where the principal clause has an opt., μηδʼ ἀντιάσειας ἐκείνῳ ὁππότε νοστήσειε Od. 18.148, cf. Pl. R. 396c, X. Cyr. 1.6.3.

in indirect questions, with ind., ἦ ῥά τι ἴδμεν . . ὁππότε Τηλέμαχος νεῖται; when he is to return, Od. 4.633 ; εἰς ὁ. by what time, Aeschin. 3.99 : rarely after a past tense, προσεδέρκετο, δέγμενος αἰεί, ὁππότε δὴ . . ἐφήσει (for ἐφείη, v. supr. I.2 b) Od. 20.386 ; εἰς σὲ βλέψαι καὶ τὸν ταμίαν ὁπότʼ ἄριστον παραθήσει Ar. V. 613.

ὁποτεοῦν at any time whatever, Arist. Metaph. 1049a1.

in causal sense, because, since, with ind., Thgn. 749 (s. v.l.), Hdt. 2.125, Pl. Lg. 895c, etc. ; also ὁπότε γε S. OC 1699 (lyr.), X. Cyr. 8.3.7.